Some of the kinks are being ironed out, I wouldn't advise changing your character stance, description, or names in starcheat until everyone establishes a stable coding environment for the new version of Starbound.
Reported issues to one of the coders for Starcheat, working on a resolution now, if this happened to you please go into %appdata%\starcheat, put those files into an archive, along with the player files associated with your character data and then post the archive here from dropbox. Things to post: Race Gender What were you doing before you saved and closed starcheat
Yes, but some people aren't familiar with practices like this if they don't regularly work in computer environments. A warning is very nice to have, but it is always nice to have backups yes.